Q3 of 10 Page 283

Why is mica considered the most important mineral in the electric and electronic industries?

Mica is considered as the most important mineral in the electric and electronics industries because of its following properties:-

• High di-electric strength


• Low power loss factor


• Insulating properties


• Resistance to high voltage.


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1

Write a brief note on mode of ‘occurrence of minerals’.

 2

What is the necessity of conserving our mineral wealth? What steps should be taken to conserve out mineral wealth?

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What are the uses of copper? Describe the three copper-producing regions of India.

 5

What do you know about the distribution of iron ore and bauxite in India?